[totem/gbsneto/various-cleanups] playlist: Port to GTask

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit b74f5c34784c34e70ff6df43fbce3dd973a7c161
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue Feb 8 12:36:15 2022 -0300

    playlist: Port to GTask
    
    GSimpleAsyncResult is deprecated, and it makes compiling
    Totem a bit noisy.
    
    The port is pretty straightforward, since TotemPlaylist
    usage of GSimpleAsyncResult is not complicated. The major
    difference is that GTasks can only be returned once, so
    replace the following (pseudo)code:
    
    ```
    if (error)
      async_result.set_error(error)
    async_result.set_boolean(result)
    async_result.complete()
    
    ```
    
    by this:
    
    ```
    if (error)
      task.return_error(error)
    else
      task.return_boolean(result)
    
    ```

 src/totem-playlist.c | 46 ++++++++++++++++++----------------------------
 1 file changed, 18 insertions(+), 28 deletions(-)
---
diff --git a/src/totem-playlist.c b/src/totem-playlist.c
index 95564c31e..dea9b1a0e 100644
--- a/src/totem-playlist.c
+++ b/src/totem-playlist.c
@@ -1075,8 +1075,8 @@ handle_parse_result (TotemPlParserResult res, TotemPlaylist *playlist, const gch
 static void
 add_mrl_cb (TotemPlParser *parser, GAsyncResult *result, AddMrlData *data)
 {
+       g_autoptr(GTask) task = NULL;
        TotemPlParserResult res;
-       GSimpleAsyncResult *async_result;
        GError *error = NULL;
        gboolean ret;
 
@@ -1091,19 +1091,14 @@ add_mrl_cb (TotemPlParser *parser, GAsyncResult *result, AddMrlData *data)
 
        /* Create an async result which will return the result to the code which called 
totem_playlist_add_mrl() */
        ret = handle_parse_result (res, data->playlist, data->mrl, data->display_name, &error);
-       async_result = g_simple_async_result_new (G_OBJECT (data->playlist), data->callback, data->user_data, 
totem_playlist_add_mrl);
-       if (error != NULL)
-               g_simple_async_result_take_error (async_result, error);
-
-       /* Handle the various return cases from the playlist parser */
-       g_simple_async_result_set_op_res_gboolean (async_result, ret);
-
-       /* Free the closure's data, now that we're finished with it */
-       add_mrl_data_free (data);
+       task = g_task_new (data->playlist, NULL, data->callback, data->user_data);
+       g_task_set_task_data (task, data, (GDestroyNotify) add_mrl_data_free);
+       g_task_set_source_tag (task, totem_playlist_add_mrl);
 
-       /* Synchronously call the calling code's callback function (i.e. what was passed to 
totem_playlist_add_mrl()'s @callback parameter)
-        * in the main thread to return the result */
-       g_simple_async_result_complete (async_result);
+       if (error != NULL)
+               g_task_return_error (task, error);
+       else
+               g_task_return_boolean (task, ret);
 }
 
 void
@@ -1135,12 +1130,9 @@ totem_playlist_add_mrl (TotemPlaylist *playlist, const char *mrl, const char *di
 gboolean
 totem_playlist_add_mrl_finish (TotemPlaylist *playlist, GAsyncResult *result, GError **error)
 {
-       g_assert (g_simple_async_result_get_source_tag (G_SIMPLE_ASYNC_RESULT (result)) == 
totem_playlist_add_mrl);
+       g_assert (g_task_get_source_tag (G_TASK (result)) == totem_playlist_add_mrl);
 
-       if (g_simple_async_result_get_op_res_gboolean (G_SIMPLE_ASYNC_RESULT (result)))
-               return TRUE;
-       g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (result), error);
-       return FALSE;
+       return g_task_propagate_boolean (G_TASK (result), error);
 }
 
 gboolean
@@ -1265,14 +1257,12 @@ add_mrls_finish_operation (AddMrlsOperationData *operation_data)
        /* Check whether this is the final callback invocation; iff it is, we can call the user's callback 
for the entire operation and free the
         * operation data */
        if (g_atomic_int_dec_and_test (&(operation_data->entries_remaining)) == TRUE) {
-               GSimpleAsyncResult *async_result;
+               g_autoptr(GTask) task = NULL;
 
-               async_result = g_simple_async_result_new (G_OBJECT (operation_data->playlist), 
operation_data->callback, operation_data->user_data,
-                                                         totem_playlist_add_mrls);
-               g_simple_async_result_complete (async_result);
-               g_object_unref (async_result);
-
-               add_mrls_operation_data_free (operation_data);
+               task = g_task_new (operation_data->playlist, NULL, operation_data->callback, 
operation_data->user_data);
+               g_task_set_task_data (task, operation_data, (GDestroyNotify) add_mrls_operation_data_free);
+               g_task_set_source_tag (task, totem_playlist_add_mrls);
+               g_task_return_boolean (task, TRUE);
        }
 }
 
@@ -1417,12 +1407,12 @@ totem_playlist_add_mrls_finish (TotemPlaylist *self,
                                 GError **error)
 {
        g_return_val_if_fail (TOTEM_IS_PLAYLIST (self), FALSE);
-       g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
+       g_return_val_if_fail (G_IS_TASK (result), FALSE);
        g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
-       g_return_val_if_fail (g_simple_async_result_is_valid (result, G_OBJECT (self), 
totem_playlist_add_mrls), FALSE);
+       g_return_val_if_fail (g_task_is_valid (result, G_OBJECT (self)), FALSE);
 
        /* We don't have anything to return at the moment. */
-       return TRUE;
+       return g_task_propagate_boolean (G_TASK (result), error);
 }
 
 static gboolean